Logic Masters Deutschland e.V.

The Puzzle Portal

Please note: The creation and use of multiple accounts is not desired in the Portal. (Exceptions are only permitted for technical reasons or with the consent of the association Logic Masters Deutschland.) We reserve the right to block users who violate this rule.

The puzzle portal is a collection of puzzles created by puzzle enthusiasts from all over the world. At the moment the portal contains 33315 puzzles.

If this is your first visit to the puzzle portal we recommend that you take a tour to get an overview of the portal contents.

We have put together a collection of puzzles suitable for beginners. These contain solution hints - and we hope that these puzzles will help you getting started.


To help you getting started navigating the portal we have put together some puzzle collections.

Puzzle typesPuzzle collectionsPuzzle authors
Sudoku Easy and nice Richard
Slither link Average and nice Luigi
ABC-tje Difficult and nice berni
Pentomino puzzles Often solved and nice
Mystery puzzles

10-in-9 (Variant) 159 (Variant) A 38 ABC Box ABCD ABCtje Achtelwenden Akari Anglers Anti-Diagonal (Variant) Anti-Factor Lines (Variant) Anti-Knight (Variant) Anti-Queen (Variant) Aquarium Arrows Arrows (Variant) Battenburg (Variant) Battlefield (Variant) Battleships Between (Variant) Binairo (Variant) Brick Wall Broken 159 (Variant) Candles Capsules Carpet (Variant) Castle Wall Cave Chaos Construction (Variant) Clone (Variant) Compass Compass (Variant) Congruence Loop Consecutive (Variant) Consecutive Pairs (Variant) Coral Country Road Cross the Streams Crossword Puzzle Diagonal (Variant) Difference (Variant) Disjoint Groups (Variant) Distance (Variant) Dominion Domino Search Dots (Theme) Double Trouble (Variant) Earthquake (Variant) Easy as ABC Entropy (Theme) Equality Even/Odd (Variant) Extra Regions (Variant) Fibonacci (Theme) Fillomino Fortress (Variant) Friendly (Variant) Galaxies Geradeweg German Whispers (Variant) Greater Than (Variant) Hakyuu Hashiwokakero Heyawake Hitori Irregular (Variant) Japanese Sums Kakuro Killer (Variant) Knight Move (Theme) Kropki Kropki Pairs (Variant) Kuromasu Kurotto Landvermessung Laser Letter Puzzle Lighthouses LITS Little Killer (Variant) Lockout Lines (Variant) Logical Magic Labyrinth Magic Square Magnets Masterword Masyu Mathrax Maximum (Variant) Mid-loop Minesweeper MinMax (Variant) Modifier Cells (Variant) Moon-or-Sun Myopia Nanro Neighbours Non-Consecutive (Variant) Non-Touching (Variant) Nonogram Norinori Number Link Nurikabe Nurimisaki Outside (Variant) Palindrome (Variant) Parity (Theme) Parity Party (Variant) Pathway (Variant) Pentominous Pentopia Position Sums (Variant) Primes (Theme) Product (Theme) Products Pyramid Quadruple (Variant) Quattroquadri (Variant) Railroads Ratio (Variant) Ratio Pairs (Variant) Region Sum Lines (Variant) Regional Sums Remote (Variant) Renban (Variant) Roller Coaster Roman Numerals (Variant) Roman Sums Rossini (Variant) Samurai (Variant) Sandwich (Variant) Sashigane Shakashaka Shikaku Shimaguni Skyscraper Clusters Skyscrapers Slingshot (Variant) Slitherlink Smashed Sums Snake Snake (Variant) Star Battle Sudoku Suguru Tapa Taxicab (Variant) Tents Thermo (Variant) Thermometers Umbrellas Underground Urnenrätsel Variables Tapasyu Windoku (Variant) X-Sums (Variant) XV (Variant) XV Pairs (Variant) XY-Differences (Variant) Yajilin Yin and Yang

Enjoy browsing the portal!

If you are interested in the recent growth of new puzzles, see the discussion in our forum (scroll down to see comments in English).

The easiest puzzles

DescriptionsolvedRating
unsolvedLook At What You're Saying
by PhoenixAki (on 9. April 2025, 10:04)
8301
78 %
unsolvedQuad V 4x4
by iceypop3444 (on 10. August 2025, 03:28)
5691
73 %
unsolved3 Numbers; 2 Clues; 1 Little Snack
by Duarte-Carvalho (on 30. January 2026, 15:01)
2621
66 %
unsolvedRose Puzzle 1
by RailMan (on 13. June 2025, 15:45)
8171
78 %
unsolvedPaperclip (4x4)
by Mr Toffee (on 18. January 2026, 15:35)
4231
74 %

Show complete list

The most beautiful puzzles

DescriptionsolvedRating
unsolvedWichtel 2016 (2): Erfahrener Höhlenforscher gesucht
by wichtel (on 20. April 2017, 11:02)
543
100 %
unsolvedDie Kryptos - S02E06: Summenbild Rundweg / Sudoku
by tuace (on 16. March 2018, 15:10)
415
100 %
unsolvedJapanische Höhle mit Irrwisch von den Außerirdischen (2)
by ibag (on 20. April 2018, 00:00)
415
100 %
unsolvedGlückwünsche vom Orion
by Statistica (on 9. July 2019, 00:55)
254
100 %
unsolvedAdventskalender 2020, Finale - Riesenrundweg
by Zzzyxas (on 1. December 2020, 07:00)
295
100 %

Show complete list

The newest puzzles

DescriptionsolvedRating
newPalimpsest
by NicoD (today, 05:30)
02
N/A
newThe Imposter
by KMD (today, 02:41)
13
N/A
newLibrary Easter Egg
by edd (today, 00:00)
102
N/A
newThe Abominable Kitty
by Cassinii (yesterday, 23:01)
132
93 %
newHey Jealousy
by juggler (yesterday, 19:39)
312
95 %

Show complete list

Latest

New commentsLast solved

VIP Lounge (Mean Mini Parity Party Sudoku) (today, 05:01 by Allagem)
Fantastic Mean Mini! Very fun to figure out which digits are present...

RAT RUN 33: Hot and Cold (today, 04:10 by psams)
Very fun, definitely required a few side notes!

A killer brakes in! (today, 04:08 by tallcat)
https://sudokupad.app/nlcbmc3bg2

Sudokupad link with solution

My first fog sudoku...fog of war #1 (today, 03:31 by alarac)
didn't realize there was negative constraint and got stuck at the end

Hey Jealousy (today, 03:26 by Jasperrr)
Lovely as always. Having played the other ones this felt quite easy, low 2* for...

Box Clever (today, 03:13 by RedBarchetta)
Thanks! I needed this one. Great coloring with nice resolve.

A killer brakes in! (today, 02:11 by Jasperrr)
Congrats on your first puzzle! For the next time, please also upload it to...

Hey Jealousy (today, 02:09 by onlainari)
I bounced around the grid like a tea cup ride, it was very fun.

Williwaw (today, 01:09 by ofsmul)
I sure hope Simon (or someone else) *does* do a walkthrough, because I'd love...

RAT RUN 32: Veracity (today, 01:02 by wunder108)
Difficulty considering solving time: 3 stars
Difficulty considering my brain...

today, 05:33
stalactites by Triggz_09

today, 05:32
Colours in the (k)night XVI by YoshiKyon

today, 05:30
Thirteen Ghosts by abinchen

today, 05:30
Balanced Nurikabe by RubberMittens

today, 05:30
Sequentially Quiet by David-Bauman

today, 05:29
River Flows In You by killer_rectangle

today, 05:28
Target Practice by mackant1

today, 05:28
Half Dozen by Leaving Leaves

today, 05:27
Still Small Voice thru the Fog by vixeast

today, 05:27
Hey Siri, is this a Good Puzzle? by Chipmunk

Show complete list

Show complete list


62 users were active in the last 15 minutes (number of solved puzzles in the last 24 hours in brackets):
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